//
// Created by 喵喵乐 on 2023/4/22.
//

#include "Stock.h"
#include <iostream>

using namespace std;

Stock::Stock() {
    company = "no name";
    shares = 0;
    share_val = 0.0;
    total_val = 0.0;
}

Stock::Stock(const std::string &str, long n, double pr) {
    company = str;
    if (n < 0) {
        std::cout << "Number of shares can't be negative;" << company << " share set to 0. \n";
        shares = 0;
    } else
        shares = 0;
    share_val = pr;
    set_tot();
}

Stock::~Stock() {
    cout << "destroy Stock " << endl;
}

void Stock::buy(long num, double price) {

}

void Stock::sell(long num, double price) {
    using std::cout;
    if (num < 0) {
        cout << "Number of shares sold can't be negative." << "Transaction is aborted ";
    } else if (num > shares) {
        cout << "You can't sell more than you have!" << "Transaction is aborted\n";
    } else {
        shares -= num;
        share_val = price;
        set_tot();
    }
}

void Stock::update(double price) {
    share_val = price;
    set_tot();
}

void Stock::show() const {
    using std::cout;
    using std::ios_base;

    ios_base::fmtflags org = cout.setf(ios_base::fixed, ios_base::floatfield);

    std::streamsize prec = cout.precision(3);

    cout << "Company:" << company << " share price $" << share_val;

    cout.precision(2);
    cout << " Total Worth : " << total_val << '\n';

    cout.setf(org, ios_base::floatfield);

    cout.precision(prec);
}

const Stock &Stock::topval(const Stock &s) const {
    if (s.total_val > total_val) {
        return s;
    } else {
        return *this;
    }
}
